This rare 9th edition hardcover book, "The Faith of Millions" by John A. O'Brien, is a captivating piece for any collector or enthusiast of Catholicism. The book delves into the topic of religion and spirituality, and is published by Our Sunday Visitors. Written in English, it is a great addition to any collection of antiquarian and collectible books and magazines. The author has explored the subject with great depth, making it an informative read for anyone interested in the topic.